TSTP Solution File: SEU159+2 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : SEU159+2 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n017.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Jul 27 13:14:58 EDT 2022

% Result   : Unknown 64.13s 64.31s
% Output   : None 
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.11  % Problem  : SEU159+2 : TPTP v8.1.0. Released v3.3.0.
% 0.11/0.12  % Command  : otter-tptp-script %s
% 0.12/0.33  % Computer : n017.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 300
% 0.12/0.33  % DateTime : Wed Jul 27 07:23:03 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 1.95/2.16  ----- Otter 3.3f, August 2004 -----
% 1.95/2.16  The process was started by sandbox on n017.cluster.edu,
% 1.95/2.16  Wed Jul 27 07:23:03 2022
% 1.95/2.16  The command was "./otter".  The process ID is 8677.
% 1.95/2.16  
% 1.95/2.16  set(prolog_style_variables).
% 1.95/2.16  set(auto).
% 1.95/2.16     dependent: set(auto1).
% 1.95/2.16     dependent: set(process_input).
% 1.95/2.16     dependent: clear(print_kept).
% 1.95/2.16     dependent: clear(print_new_demod).
% 1.95/2.16     dependent: clear(print_back_demod).
% 1.95/2.16     dependent: clear(print_back_sub).
% 1.95/2.16     dependent: set(control_memory).
% 1.95/2.16     dependent: assign(max_mem, 12000).
% 1.95/2.16     dependent: assign(pick_given_ratio, 4).
% 1.95/2.16     dependent: assign(stats_level, 1).
% 1.95/2.16     dependent: assign(max_seconds, 10800).
% 1.95/2.16  clear(print_given).
% 1.95/2.16  
% 1.95/2.16  formula_list(usable).
% 1.95/2.16  all A (A=A).
% 1.95/2.16  all A B (in(A,B)-> -in(B,A)).
% 1.95/2.16  all A B (proper_subset(A,B)-> -proper_subset(B,A)).
% 1.95/2.16  all A B (unordered_pair(A,B)=unordered_pair(B,A)).
% 1.95/2.16  all A B (set_union2(A,B)=set_union2(B,A)).
% 1.95/2.16  all A B (set_intersection2(A,B)=set_intersection2(B,A)).
% 1.95/2.16  all A B (A=B<->subset(A,B)&subset(B,A)).
% 1.95/2.16  all A B (B=singleton(A)<-> (all C (in(C,B)<->C=A))).
% 1.95/2.16  all A (A=empty_set<-> (all B (-in(B,A)))).
% 1.95/2.16  all A B (B=powerset(A)<-> (all C (in(C,B)<->subset(C,A)))).
% 1.95/2.16  all A B C (C=unordered_pair(A,B)<-> (all D (in(D,C)<->D=A|D=B))).
% 1.95/2.16  all A B C (C=set_union2(A,B)<-> (all D (in(D,C)<->in(D,A)|in(D,B)))).
% 1.95/2.16  all A B C (C=cartesian_product2(A,B)<-> (all D (in(D,C)<-> (exists E F (in(E,A)&in(F,B)&D=ordered_pair(E,F)))))).
% 1.95/2.16  all A B (subset(A,B)<-> (all C (in(C,A)->in(C,B)))).
% 1.95/2.16  all A B C (C=set_intersection2(A,B)<-> (all D (in(D,C)<->in(D,A)&in(D,B)))).
% 1.95/2.16  all A B (B=union(A)<-> (all C (in(C,B)<-> (exists D (in(C,D)&in(D,A)))))).
% 1.95/2.16  all A B C (C=set_difference(A,B)<-> (all D (in(D,C)<->in(D,A)& -in(D,B)))).
% 1.95/2.16  all A B (ordered_pair(A,B)=unordered_pair(unordered_pair(A,B),singleton(A))).
% 1.95/2.16  all A B (disjoint(A,B)<->set_intersection2(A,B)=empty_set).
% 1.95/2.16  all A B (proper_subset(A,B)<->subset(A,B)&A!=B).
% 1.95/2.16  $T.
% 1.95/2.16  $T.
% 1.95/2.16  $T.
% 1.95/2.16  $T.
% 1.95/2.16  $T.
% 1.95/2.16  $T.
% 1.95/2.16  $T.
% 1.95/2.16  $T.
% 1.95/2.16  $T.
% 1.95/2.16  $T.
% 1.95/2.16  empty(empty_set).
% 1.95/2.16  all A B (-empty(ordered_pair(A,B))).
% 1.95/2.16  all A B (-empty(A)-> -empty(set_union2(A,B))).
% 1.95/2.16  all A B (-empty(A)-> -empty(set_union2(B,A))).
% 1.95/2.16  all A B (set_union2(A,A)=A).
% 1.95/2.16  all A B (set_intersection2(A,A)=A).
% 1.95/2.16  all A B (-proper_subset(A,A)).
% 1.95/2.16  all A (singleton(A)!=empty_set).
% 1.95/2.16  all A B (in(A,B)->set_union2(singleton(A),B)=B).
% 1.95/2.16  all A B (-(disjoint(singleton(A),B)&in(A,B))).
% 1.95/2.16  all A B (-in(A,B)->disjoint(singleton(A),B)).
% 1.95/2.16  all A B (subset(singleton(A),B)<->in(A,B)).
% 1.95/2.16  all A B (set_difference(A,B)=empty_set<->subset(A,B)).
% 1.95/2.16  all A B C (subset(A,B)->in(C,A)|subset(A,set_difference(B,singleton(C)))).
% 1.95/2.16  all A B (subset(A,singleton(B))<->A=empty_set|A=singleton(B)).
% 1.95/2.16  all A B (in(A,B)->subset(A,union(B))).
% 1.95/2.16  all A B C D (in(ordered_pair(A,B),cartesian_product2(C,D))<->in(A,C)&in(B,D)).
% 1.95/2.16  exists A empty(A).
% 1.95/2.16  exists A (-empty(A)).
% 1.95/2.16  all A B subset(A,A).
% 1.95/2.16  all A B (disjoint(A,B)->disjoint(B,A)).
% 1.95/2.16  all A B C D (-(unordered_pair(A,B)=unordered_pair(C,D)&A!=C&A!=D)).
% 1.95/2.16  all A B (subset(A,B)->set_union2(A,B)=B).
% 1.95/2.16  all A B subset(set_intersection2(A,B),A).
% 1.95/2.16  all A B C (subset(A,B)&subset(A,C)->subset(A,set_intersection2(B,C))).
% 1.95/2.16  all A (set_union2(A,empty_set)=A).
% 1.95/2.16  all A B C (subset(A,B)&subset(B,C)->subset(A,C)).
% 1.95/2.16  powerset(empty_set)=singleton(empty_set).
% 1.95/2.16  all A B C (subset(A,B)->subset(set_intersection2(A,C),set_intersection2(B,C))).
% 1.95/2.16  all A B (subset(A,B)->set_intersection2(A,B)=A).
% 1.95/2.16  all A (set_intersection2(A,empty_set)=empty_set).
% 1.95/2.16  all A B ((all C (in(C,A)<->in(C,B)))->A=B).
% 1.95/2.16  all A subset(empty_set,A).
% 1.95/2.16  all A B C (subset(A,B)->subset(set_difference(A,C),set_difference(B,C))).
% 1.95/2.16  all A B C D (ordered_pair(A,B)=ordered_pair(C,D)->A=C&B=D).
% 1.95/2.16  all A B subset(set_difference(A,B),A).
% 1.95/2.16  all A B (set_difference(A,B)=empty_set<->subset(A,B)).
% 1.95/2.16  all A B (subset(singleton(A),B)<->in(A,B)).
% 1.95/2.16  -(all A B C (subset(unordered_pair(A,B),C)<->in(A,C)&in(B,C))).
% 1.95/2.16  all A B (set_union2(A,set_difference(B,A))=set_union2(A,B)).
% 1.95/2.16  all A (set_difference(A,empty_set)=A).
% 1.95/2.16  all A B (-(-disjoint(A,B)& (all C (-(in(C,A)&in(C,B)))))& -((exists C (in(C,A)&in(C,B)))&disjoint(A,B))).
% 1.95/2.16  all A (subset(A,empty_set)->A=empty_set).
% 1.95/2.16  all A B (set_difference(set_union2(A,B),B)=set_difference(A,B)).
% 1.95/2.16  all A B (subset(A,B)->B=set_union2(A,set_difference(B,A))).
% 1.95/2.16  all A B (set_difference(A,set_difference(A,B))=set_intersection2(A,B)).
% 1.95/2.16  all A (set_difference(empty_set,A)=empty_set).
% 1.95/2.16  all A B (-(-disjoint(A,B)& (all C (-in(C,set_intersection2(A,B)))))& -((exists C in(C,set_intersection2(A,B)))&disjoint(A,B))).
% 1.95/2.16  all A B (-(subset(A,B)&proper_subset(B,A))).
% 1.95/2.16  all A B C (subset(A,B)&disjoint(B,C)->disjoint(A,C)).
% 1.95/2.16  all A (unordered_pair(A,A)=singleton(A)).
% 1.95/2.16  all A (empty(A)->A=empty_set).
% 1.95/2.16  all A B (subset(singleton(A),singleton(B))->A=B).
% 1.95/2.16  all A B (-(in(A,B)&empty(B))).
% 1.95/2.16  all A B subset(A,set_union2(A,B)).
% 1.95/2.16  all A B (disjoint(A,B)<->set_difference(A,B)=A).
% 1.95/2.16  all A B (-(empty(A)&A!=B&empty(B))).
% 1.95/2.16  all A B C (subset(A,B)&subset(C,B)->subset(set_union2(A,C),B)).
% 1.95/2.16  all A B C (singleton(A)=unordered_pair(B,C)->A=B).
% 1.95/2.16  all A B C (singleton(A)=unordered_pair(B,C)->B=C).
% 1.95/2.16  end_of_list.
% 1.95/2.16  
% 1.95/2.16  -------> usable clausifies to:
% 1.95/2.16  
% 1.95/2.16  list(usable).
% 1.95/2.16  0 [] A=A.
% 1.95/2.16  0 [] -in(A,B)| -in(B,A).
% 1.95/2.16  0 [] -proper_subset(A,B)| -proper_subset(B,A).
% 1.95/2.16  0 [] unordered_pair(A,B)=unordered_pair(B,A).
% 1.95/2.16  0 [] set_union2(A,B)=set_union2(B,A).
% 1.95/2.16  0 [] set_intersection2(A,B)=set_intersection2(B,A).
% 1.95/2.16  0 [] A!=B|subset(A,B).
% 1.95/2.16  0 [] A!=B|subset(B,A).
% 1.95/2.16  0 [] A=B| -subset(A,B)| -subset(B,A).
% 1.95/2.16  0 [] B!=singleton(A)| -in(C,B)|C=A.
% 1.95/2.16  0 [] B!=singleton(A)|in(C,B)|C!=A.
% 1.95/2.16  0 [] B=singleton(A)|in($f1(A,B),B)|$f1(A,B)=A.
% 1.95/2.16  0 [] B=singleton(A)| -in($f1(A,B),B)|$f1(A,B)!=A.
% 1.95/2.16  0 [] A!=empty_set| -in(B,A).
% 1.95/2.16  0 [] A=empty_set|in($f2(A),A).
% 1.95/2.16  0 [] B!=powerset(A)| -in(C,B)|subset(C,A).
% 1.95/2.16  0 [] B!=powerset(A)|in(C,B)| -subset(C,A).
% 1.95/2.16  0 [] B=powerset(A)|in($f3(A,B),B)|subset($f3(A,B),A).
% 1.95/2.16  0 [] B=powerset(A)| -in($f3(A,B),B)| -subset($f3(A,B),A).
% 1.95/2.16  0 [] C!=unordered_pair(A,B)| -in(D,C)|D=A|D=B.
% 1.95/2.16  0 [] C!=unordered_pair(A,B)|in(D,C)|D!=A.
% 1.95/2.16  0 [] C!=unordered_pair(A,B)|in(D,C)|D!=B.
% 1.95/2.16  0 [] C=unordered_pair(A,B)|in($f4(A,B,C),C)|$f4(A,B,C)=A|$f4(A,B,C)=B.
% 1.95/2.16  0 [] C=unordered_pair(A,B)| -in($f4(A,B,C),C)|$f4(A,B,C)!=A.
% 1.95/2.16  0 [] C=unordered_pair(A,B)| -in($f4(A,B,C),C)|$f4(A,B,C)!=B.
% 1.95/2.16  0 [] C!=set_union2(A,B)| -in(D,C)|in(D,A)|in(D,B).
% 1.95/2.16  0 [] C!=set_union2(A,B)|in(D,C)| -in(D,A).
% 1.95/2.16  0 [] C!=set_union2(A,B)|in(D,C)| -in(D,B).
% 1.95/2.16  0 [] C=set_union2(A,B)|in($f5(A,B,C),C)|in($f5(A,B,C),A)|in($f5(A,B,C),B).
% 1.95/2.16  0 [] C=set_union2(A,B)| -in($f5(A,B,C),C)| -in($f5(A,B,C),A).
% 1.95/2.16  0 [] C=set_union2(A,B)| -in($f5(A,B,C),C)| -in($f5(A,B,C),B).
% 1.95/2.16  0 [] C!=cartesian_product2(A,B)| -in(D,C)|in($f7(A,B,C,D),A).
% 1.95/2.16  0 [] C!=cartesian_product2(A,B)| -in(D,C)|in($f6(A,B,C,D),B).
% 1.95/2.16  0 [] C!=cartesian_product2(A,B)| -in(D,C)|D=ordered_pair($f7(A,B,C,D),$f6(A,B,C,D)).
% 1.95/2.16  0 [] C!=cartesian_product2(A,B)|in(D,C)| -in(E,A)| -in(F,B)|D!=ordered_pair(E,F).
% 1.95/2.16  0 [] C=cartesian_product2(A,B)|in($f10(A,B,C),C)|in($f9(A,B,C),A).
% 1.95/2.16  0 [] C=cartesian_product2(A,B)|in($f10(A,B,C),C)|in($f8(A,B,C),B).
% 1.95/2.16  0 [] C=cartesian_product2(A,B)|in($f10(A,B,C),C)|$f10(A,B,C)=ordered_pair($f9(A,B,C),$f8(A,B,C)).
% 1.95/2.16  0 [] C=cartesian_product2(A,B)| -in($f10(A,B,C),C)| -in(X1,A)| -in(X2,B)|$f10(A,B,C)!=ordered_pair(X1,X2).
% 1.95/2.16  0 [] -subset(A,B)| -in(C,A)|in(C,B).
% 1.95/2.16  0 [] subset(A,B)|in($f11(A,B),A).
% 1.95/2.16  0 [] subset(A,B)| -in($f11(A,B),B).
% 1.95/2.16  0 [] C!=set_intersection2(A,B)| -in(D,C)|in(D,A).
% 1.95/2.16  0 [] C!=set_intersection2(A,B)| -in(D,C)|in(D,B).
% 1.95/2.16  0 [] C!=set_intersection2(A,B)|in(D,C)| -in(D,A)| -in(D,B).
% 1.95/2.16  0 [] C=set_intersection2(A,B)|in($f12(A,B,C),C)|in($f12(A,B,C),A).
% 1.95/2.16  0 [] C=set_intersection2(A,B)|in($f12(A,B,C),C)|in($f12(A,B,C),B).
% 1.95/2.16  0 [] C=set_intersection2(A,B)| -in($f12(A,B,C),C)| -in($f12(A,B,C),A)| -in($f12(A,B,C),B).
% 1.95/2.16  0 [] B!=union(A)| -in(C,B)|in(C,$f13(A,B,C)).
% 1.95/2.16  0 [] B!=union(A)| -in(C,B)|in($f13(A,B,C),A).
% 1.95/2.16  0 [] B!=union(A)|in(C,B)| -in(C,D)| -in(D,A).
% 1.95/2.16  0 [] B=union(A)|in($f15(A,B),B)|in($f15(A,B),$f14(A,B)).
% 1.95/2.16  0 [] B=union(A)|in($f15(A,B),B)|in($f14(A,B),A).
% 1.95/2.16  0 [] B=union(A)| -in($f15(A,B),B)| -in($f15(A,B),X3)| -in(X3,A).
% 1.95/2.16  0 [] C!=set_difference(A,B)| -in(D,C)|in(D,A).
% 1.95/2.16  0 [] C!=set_difference(A,B)| -in(D,C)| -in(D,B).
% 1.95/2.16  0 [] C!=set_difference(A,B)|in(D,C)| -in(D,A)|in(D,B).
% 1.95/2.16  0 [] C=set_difference(A,B)|in($f16(A,B,C),C)|in($f16(A,B,C),A).
% 1.95/2.16  0 [] C=set_difference(A,B)|in($f16(A,B,C),C)| -in($f16(A,B,C),B).
% 1.95/2.16  0 [] C=set_difference(A,B)| -in($f16(A,B,C),C)| -in($f16(A,B,C),A)|in($f16(A,B,C),B).
% 1.95/2.16  0 [] ordered_pair(A,B)=unordered_pair(unordered_pair(A,B),singleton(A)).
% 1.95/2.16  0 [] -disjoint(A,B)|set_intersection2(A,B)=empty_set.
% 1.95/2.16  0 [] disjoint(A,B)|set_intersection2(A,B)!=empty_set.
% 1.95/2.16  0 [] -proper_subset(A,B)|subset(A,B).
% 1.95/2.16  0 [] -proper_subset(A,B)|A!=B.
% 1.95/2.16  0 [] proper_subset(A,B)| -subset(A,B)|A=B.
% 1.95/2.16  0 [] $T.
% 1.95/2.16  0 [] $T.
% 1.95/2.16  0 [] $T.
% 1.95/2.16  0 [] $T.
% 1.95/2.16  0 [] $T.
% 1.95/2.16  0 [] $T.
% 1.95/2.16  0 [] $T.
% 1.95/2.16  0 [] $T.
% 1.95/2.16  0 [] $T.
% 1.95/2.16  0 [] $T.
% 1.95/2.16  0 [] empty(empty_set).
% 1.95/2.16  0 [] -empty(ordered_pair(A,B)).
% 1.95/2.16  0 [] empty(A)| -empty(set_union2(A,B)).
% 1.95/2.16  0 [] empty(A)| -empty(set_union2(B,A)).
% 1.95/2.16  0 [] set_union2(A,A)=A.
% 1.95/2.16  0 [] set_intersection2(A,A)=A.
% 1.95/2.16  0 [] -proper_subset(A,A).
% 1.95/2.16  0 [] singleton(A)!=empty_set.
% 1.95/2.16  0 [] -in(A,B)|set_union2(singleton(A),B)=B.
% 1.95/2.16  0 [] -disjoint(singleton(A),B)| -in(A,B).
% 1.95/2.16  0 [] in(A,B)|disjoint(singleton(A),B).
% 1.95/2.16  0 [] -subset(singleton(A),B)|in(A,B).
% 1.95/2.16  0 [] subset(singleton(A),B)| -in(A,B).
% 1.95/2.16  0 [] set_difference(A,B)!=empty_set|subset(A,B).
% 1.95/2.16  0 [] set_difference(A,B)=empty_set| -subset(A,B).
% 1.95/2.16  0 [] -subset(A,B)|in(C,A)|subset(A,set_difference(B,singleton(C))).
% 1.95/2.16  0 [] -subset(A,singleton(B))|A=empty_set|A=singleton(B).
% 1.95/2.16  0 [] subset(A,singleton(B))|A!=empty_set.
% 1.95/2.16  0 [] subset(A,singleton(B))|A!=singleton(B).
% 1.95/2.16  0 [] -in(A,B)|subset(A,union(B)).
% 1.95/2.16  0 [] -in(ordered_pair(A,B),cartesian_product2(C,D))|in(A,C).
% 1.95/2.16  0 [] -in(ordered_pair(A,B),cartesian_product2(C,D))|in(B,D).
% 1.95/2.16  0 [] in(ordered_pair(A,B),cartesian_product2(C,D))| -in(A,C)| -in(B,D).
% 1.95/2.16  0 [] empty($c1).
% 1.95/2.16  0 [] -empty($c2).
% 1.95/2.16  0 [] subset(A,A).
% 1.95/2.16  0 [] -disjoint(A,B)|disjoint(B,A).
% 1.95/2.16  0 [] unordered_pair(A,B)!=unordered_pair(C,D)|A=C|A=D.
% 1.95/2.16  0 [] -subset(A,B)|set_union2(A,B)=B.
% 1.95/2.16  0 [] subset(set_intersection2(A,B),A).
% 1.95/2.16  0 [] -subset(A,B)| -subset(A,C)|subset(A,set_intersection2(B,C)).
% 1.95/2.16  0 [] set_union2(A,empty_set)=A.
% 1.95/2.16  0 [] -subset(A,B)| -subset(B,C)|subset(A,C).
% 1.95/2.16  0 [] powerset(empty_set)=singleton(empty_set).
% 1.95/2.16  0 [] -subset(A,B)|subset(set_intersection2(A,C),set_intersection2(B,C)).
% 1.95/2.16  0 [] -subset(A,B)|set_intersection2(A,B)=A.
% 1.95/2.16  0 [] set_intersection2(A,empty_set)=empty_set.
% 1.95/2.16  0 [] in($f17(A,B),A)|in($f17(A,B),B)|A=B.
% 1.95/2.16  0 [] -in($f17(A,B),A)| -in($f17(A,B),B)|A=B.
% 1.95/2.16  0 [] subset(empty_set,A).
% 1.95/2.16  0 [] -subset(A,B)|subset(set_difference(A,C),set_difference(B,C)).
% 1.95/2.16  0 [] ordered_pair(A,B)!=ordered_pair(C,D)|A=C.
% 1.95/2.16  0 [] ordered_pair(A,B)!=ordered_pair(C,D)|B=D.
% 1.95/2.16  0 [] subset(set_difference(A,B),A).
% 1.95/2.16  0 [] set_difference(A,B)!=empty_set|subset(A,B).
% 1.95/2.16  0 [] set_difference(A,B)=empty_set| -subset(A,B).
% 1.95/2.16  0 [] -subset(singleton(A),B)|in(A,B).
% 1.95/2.16  0 [] subset(singleton(A),B)| -in(A,B).
% 1.95/2.16  0 [] subset(unordered_pair($c5,$c4),$c3)|in($c5,$c3).
% 1.95/2.16  0 [] subset(unordered_pair($c5,$c4),$c3)|in($c4,$c3).
% 1.95/2.16  0 [] -subset(unordered_pair($c5,$c4),$c3)| -in($c5,$c3)| -in($c4,$c3).
% 1.95/2.16  0 [] set_union2(A,set_difference(B,A))=set_union2(A,B).
% 1.95/2.16  0 [] set_difference(A,empty_set)=A.
% 1.95/2.16  0 [] disjoint(A,B)|in($f18(A,B),A).
% 1.95/2.16  0 [] disjoint(A,B)|in($f18(A,B),B).
% 1.95/2.16  0 [] -in(C,A)| -in(C,B)| -disjoint(A,B).
% 1.95/2.16  0 [] -subset(A,empty_set)|A=empty_set.
% 1.95/2.16  0 [] set_difference(set_union2(A,B),B)=set_difference(A,B).
% 1.95/2.16  0 [] -subset(A,B)|B=set_union2(A,set_difference(B,A)).
% 1.95/2.16  0 [] set_difference(A,set_difference(A,B))=set_intersection2(A,B).
% 1.95/2.16  0 [] set_difference(empty_set,A)=empty_set.
% 1.95/2.16  0 [] disjoint(A,B)|in($f19(A,B),set_intersection2(A,B)).
% 1.95/2.16  0 [] -in(C,set_intersection2(A,B))| -disjoint(A,B).
% 1.95/2.16  0 [] -subset(A,B)| -proper_subset(B,A).
% 1.95/2.16  0 [] -subset(A,B)| -disjoint(B,C)|disjoint(A,C).
% 1.95/2.16  0 [] unordered_pair(A,A)=singleton(A).
% 1.95/2.16  0 [] -empty(A)|A=empty_set.
% 1.95/2.16  0 [] -subset(singleton(A),singleton(B))|A=B.
% 1.95/2.16  0 [] -in(A,B)| -empty(B).
% 1.95/2.16  0 [] subset(A,set_union2(A,B)).
% 1.95/2.16  0 [] -disjoint(A,B)|set_difference(A,B)=A.
% 1.95/2.16  0 [] disjoint(A,B)|set_difference(A,B)!=A.
% 1.95/2.16  0 [] -empty(A)|A=B| -empty(B).
% 1.95/2.16  0 [] -subset(A,B)| -subset(C,B)|subset(set_union2(A,C),B).
% 1.95/2.16  0 [] singleton(A)!=unordered_pair(B,C)|A=B.
% 1.95/2.16  0 [] singleton(A)!=unordered_pair(B,C)|B=C.
% 1.95/2.16  end_of_list.
% 1.95/2.16  
% 1.95/2.16  SCAN INPUT: prop=0, horn=0, equality=1, symmetry=0, max_lits=5.
% 1.95/2.16  
% 1.95/2.16  This ia a non-Horn set with equality.  The strategy will be
% 1.95/2.16  Knuth-Bendix, ordered hyper_res, factoring, and unit
% 1.95/2.16  deletion, with positive clauses in sos and nonpositive
% 1.95/2.16  clauses in usable.
% 1.95/2.16  
% 1.95/2.16     dependent: set(knuth_bendix).
% 1.95/2.16     dependent: set(anl_eq).
% 1.95/2.16     dependent: set(para_from).
% 1.95/2.16     dependent: set(para_into).
% 1.95/2.16     dependent: clear(para_from_right).
% 1.95/2.16     dependent: clear(para_into_right).
% 1.95/2.16     dependent: set(para_from_vars).
% 1.95/2.16     dependent: set(eq_units_both_ways).
% 1.95/2.16     dependent: set(dynamic_demod_all).
% 1.95/2.16     dependent: set(dynamic_demod).
% 1.95/2.16     dependent: set(order_eq).
% 1.95/2.16     dependent: set(back_demod).
% 1.95/2.16     dependent: set(lrpo).
% 1.95/2.16     dependent: set(hyper_res).
% 1.95/2.16     dependent: set(unit_deletion).
% 1.95/2.16     dependent: set(factor).
% 1.95/2.16  
% 1.95/2.16  ------------> process usable:
% 1.95/2.16  ** KEPT (pick-wt=6): 1 [] -in(A,B)| -in(B,A).
% 1.95/2.16  ** KEPT (pick-wt=6): 2 [] -proper_subset(A,B)| -proper_subset(B,A).
% 1.95/2.16  ** KEPT (pick-wt=6): 3 [] A!=B|subset(A,B).
% 1.95/2.16  ** KEPT (pick-wt=6): 4 [] A!=B|subset(B,A).
% 1.95/2.16  ** KEPT (pick-wt=9): 5 [] A=B| -subset(A,B)| -subset(B,A).
% 1.95/2.16  ** KEPT (pick-wt=10): 6 [] A!=singleton(B)| -in(C,A)|C=B.
% 1.95/2.16  ** KEPT (pick-wt=10): 7 [] A!=singleton(B)|in(C,A)|C!=B.
% 1.95/2.16  ** KEPT (pick-wt=14): 8 [] A=singleton(B)| -in($f1(B,A),A)|$f1(B,A)!=B.
% 1.95/2.16  ** KEPT (pick-wt=6): 9 [] A!=empty_set| -in(B,A).
% 1.95/2.16  ** KEPT (pick-wt=10): 10 [] A!=powerset(B)| -in(C,A)|subset(C,B).
% 1.95/2.16  ** KEPT (pick-wt=10): 11 [] A!=powerset(B)|in(C,A)| -subset(C,B).
% 1.95/2.16  ** KEPT (pick-wt=14): 12 [] A=powerset(B)| -in($f3(B,A),A)| -subset($f3(B,A),B).
% 1.95/2.16  ** KEPT (pick-wt=14): 13 [] A!=unordered_pair(B,C)| -in(D,A)|D=B|D=C.
% 1.95/2.16  ** KEPT (pick-wt=11): 14 [] A!=unordered_pair(B,C)|in(D,A)|D!=B.
% 1.95/2.16  ** KEPT (pick-wt=11): 15 [] A!=unordered_pair(B,C)|in(D,A)|D!=C.
% 1.95/2.16  ** KEPT (pick-wt=17): 16 [] A=unordered_pair(B,C)| -in($f4(B,C,A),A)|$f4(B,C,A)!=B.
% 1.95/2.16  ** KEPT (pick-wt=17): 17 [] A=unordered_pair(B,C)| -in($f4(B,C,A),A)|$f4(B,C,A)!=C.
% 1.95/2.16  ** KEPT (pick-wt=14): 18 [] A!=set_union2(B,C)| -in(D,A)|in(D,B)|in(D,C).
% 1.95/2.16  ** KEPT (pick-wt=11): 19 [] A!=set_union2(B,C)|in(D,A)| -in(D,B).
% 1.95/2.16  ** KEPT (pick-wt=11): 20 [] A!=set_union2(B,C)|in(D,A)| -in(D,C).
% 1.95/2.16  ** KEPT (pick-wt=17): 21 [] A=set_union2(B,C)| -in($f5(B,C,A),A)| -in($f5(B,C,A),B).
% 1.95/2.16  ** KEPT (pick-wt=17): 22 [] A=set_union2(B,C)| -in($f5(B,C,A),A)| -in($f5(B,C,A),C).
% 1.95/2.16  ** KEPT (pick-wt=15): 23 [] A!=cartesian_product2(B,C)| -in(D,A)|in($f7(B,C,A,D),B).
% 1.95/2.16  ** KEPT (pick-wt=15): 24 [] A!=cartesian_product2(B,C)| -in(D,A)|in($f6(B,C,A,D),C).
% 1.95/2.16  ** KEPT (pick-wt=21): 26 [copy,25,flip.3] A!=cartesian_product2(B,C)| -in(D,A)|ordered_pair($f7(B,C,A,D),$f6(B,C,A,D))=D.
% 1.95/2.16  ** KEPT (pick-wt=19): 27 [] A!=cartesian_product2(B,C)|in(D,A)| -in(E,B)| -in(F,C)|D!=ordered_pair(E,F).
% 1.95/2.16  ** KEPT (pick-wt=25): 28 [] A=cartesian_product2(B,C)| -in($f10(B,C,A),A)| -in(D,B)| -in(E,C)|$f10(B,C,A)!=ordered_pair(D,E).
% 1.95/2.16  ** KEPT (pick-wt=9): 29 [] -subset(A,B)| -in(C,A)|in(C,B).
% 1.95/2.16  ** KEPT (pick-wt=8): 30 [] subset(A,B)| -in($f11(A,B),B).
% 1.95/2.16  ** KEPT (pick-wt=11): 31 [] A!=set_intersection2(B,C)| -in(D,A)|in(D,B).
% 1.95/2.16  ** KEPT (pick-wt=11): 32 [] A!=set_intersection2(B,C)| -in(D,A)|in(D,C).
% 1.95/2.16  ** KEPT (pick-wt=14): 33 [] A!=set_intersection2(B,C)|in(D,A)| -in(D,B)| -in(D,C).
% 1.95/2.16  ** KEPT (pick-wt=23): 34 [] A=set_intersection2(B,C)| -in($f12(B,C,A),A)| -in($f12(B,C,A),B)| -in($f12(B,C,A),C).
% 1.95/2.16  ** KEPT (pick-wt=13): 35 [] A!=union(B)| -in(C,A)|in(C,$f13(B,A,C)).
% 1.95/2.16  ** KEPT (pick-wt=13): 36 [] A!=union(B)| -in(C,A)|in($f13(B,A,C),B).
% 1.95/2.16  ** KEPT (pick-wt=13): 37 [] A!=union(B)|in(C,A)| -in(C,D)| -in(D,B).
% 1.95/2.16  ** KEPT (pick-wt=17): 38 [] A=union(B)| -in($f15(B,A),A)| -in($f15(B,A),C)| -in(C,B).
% 1.95/2.16  ** KEPT (pick-wt=11): 39 [] A!=set_difference(B,C)| -in(D,A)|in(D,B).
% 1.95/2.16  ** KEPT (pick-wt=11): 40 [] A!=set_difference(B,C)| -in(D,A)| -in(D,C).
% 1.95/2.16  ** KEPT (pick-wt=14): 41 [] A!=set_difference(B,C)|in(D,A)| -in(D,B)|in(D,C).
% 1.95/2.16  ** KEPT (pick-wt=17): 42 [] A=set_difference(B,C)|in($f16(B,C,A),A)| -in($f16(B,C,A),C).
% 1.95/2.16  ** KEPT (pick-wt=23): 43 [] A=set_difference(B,C)| -in($f16(B,C,A),A)| -in($f16(B,C,A),B)|in($f16(B,C,A),C).
% 1.95/2.16  ** KEPT (pick-wt=8): 44 [] -disjoint(A,B)|set_intersection2(A,B)=empty_set.
% 1.95/2.16  ** KEPT (pick-wt=8): 45 [] disjoint(A,B)|set_intersection2(A,B)!=empty_set.
% 1.95/2.16  ** KEPT (pick-wt=6): 46 [] -proper_subset(A,B)|subset(A,B).
% 1.95/2.16  ** KEPT (pick-wt=6): 47 [] -proper_subset(A,B)|A!=B.
% 1.95/2.16  ** KEPT (pick-wt=9): 48 [] proper_subset(A,B)| -subset(A,B)|A=B.
% 1.95/2.16  ** KEPT (pick-wt=4): 49 [] -empty(ordered_pair(A,B)).
% 1.95/2.16  ** KEPT (pick-wt=6): 50 [] empty(A)| -empty(set_union2(A,B)).
% 1.95/2.16  ** KEPT (pick-wt=6): 51 [] empty(A)| -empty(set_union2(B,A)).
% 1.95/2.16  ** KEPT (pick-wt=3): 52 [] -proper_subset(A,A).
% 1.95/2.16  ** KEPT (pick-wt=4): 53 [] singleton(A)!=empty_set.
% 1.95/2.16  ** KEPT (pick-wt=9): 54 [] -in(A,B)|set_union2(singleton(A),B)=B.
% 1.95/2.16  ** KEPT (pick-wt=7): 55 [] -disjoint(singleton(A),B)| -in(A,B).
% 1.95/2.16  ** KEPT (pick-wt=7): 56 [] -subset(singleton(A),B)|in(A,B).
% 1.95/2.16  ** KEPT (pick-wt=7): 57 [] subset(singleton(A),B)| -in(A,B).
% 1.95/2.16  ** KEPT (pick-wt=8): 58 [] set_difference(A,B)!=empty_set|subset(A,B).
% 1.95/2.16  ** KEPT (pick-wt=8): 59 [] set_difference(A,B)=empty_set| -subset(A,B).
% 1.95/2.16  ** KEPT (pick-wt=12): 60 [] -subset(A,B)|in(C,A)|subset(A,set_difference(B,singleton(C))).
% 1.95/2.16  ** KEPT (pick-wt=11): 61 [] -subset(A,singleton(B))|A=empty_set|A=singleton(B).
% 1.95/2.16  ** KEPT (pick-wt=7): 62 [] subset(A,singleton(B))|A!=empty_set.
% 1.95/2.16    Following clause subsumed by 3 during input processing: 0 [] subset(A,singleton(B))|A!=singleton(B).
% 1.95/2.16  ** KEPT (pick-wt=7): 63 [] -in(A,B)|subset(A,union(B)).
% 1.95/2.16  ** KEPT (pick-wt=10): 64 [] -in(ordered_pair(A,B),cartesian_product2(C,D))|in(A,C).
% 1.95/2.16  ** KEPT (pick-wt=10): 65 [] -in(ordered_pair(A,B),cartesian_product2(C,D))|in(B,D).
% 1.95/2.16  ** KEPT (pick-wt=13): 66 [] in(ordered_pair(A,B),cartesian_product2(C,D))| -in(A,C)| -in(B,D).
% 1.95/2.16  ** KEPT (pick-wt=2): 67 [] -empty($c2).
% 1.95/2.16  ** KEPT (pick-wt=6): 68 [] -disjoint(A,B)|disjoint(B,A).
% 1.95/2.16  ** KEPT (pick-wt=13): 69 [] unordered_pair(A,B)!=unordered_pair(C,D)|A=C|A=D.
% 1.95/2.16  ** KEPT (pick-wt=8): 70 [] -subset(A,B)|set_union2(A,B)=B.
% 1.95/2.16  ** KEPT (pick-wt=11): 71 [] -subset(A,B)| -subset(A,C)|subset(A,set_intersection2(B,C)).
% 1.95/2.16  ** KEPT (pick-wt=9): 72 [] -subset(A,B)| -subset(B,C)|subset(A,C).
% 1.95/2.16  ** KEPT (pick-wt=10): 73 [] -subset(A,B)|subset(set_intersection2(A,C),set_intersection2(B,C)).
% 1.95/2.16  ** KEPT (pick-wt=8): 74 [] -subset(A,B)|set_intersection2(A,B)=A.
% 1.95/2.16  ** KEPT (pick-wt=13): 75 [] -in($f17(A,B),A)| -in($f17(A,B),B)|A=B.
% 1.95/2.16  ** KEPT (pick-wt=10): 76 [] -subset(A,B)|subset(set_difference(A,C),set_difference(B,C)).
% 1.95/2.16  ** KEPT (pick-wt=10): 77 [] ordered_pair(A,B)!=ordered_pair(C,D)|A=C.
% 1.95/2.16  ** KEPT (pick-wt=10): 78 [] ordered_pair(A,B)!=ordered_pair(C,D)|B=D.
% 1.95/2.16    Following clause subsumed by 58 during input processing: 0 [] set_difference(A,B)!=empty_set|subset(A,B).
% 1.95/2.16    Following clause subsumed by 59 during input processing: 0 [] set_difference(A,B)=empty_set| -subset(A,B).
% 1.95/2.16    Following clause subsumed by 56 during input processing: 0 [] -subset(singleton(A),B)|in(A,B).
% 1.95/2.16    Following clause subsumed by 57 during input processing: 0 [] subset(singleton(A),B)| -in(A,B).
% 1.95/2.16  ** KEPT (pick-wt=11): 79 [] -subset(unordered_pair($c5,$c4),$c3)| -in($c5,$c3)| -in($c4,$c3).
% 1.95/2.16  ** KEPT (pick-wt=9): 80 [] -in(A,B)| -in(A,C)| -disjoint(B,C).
% 1.95/2.16  ** KEPT (pick-wt=6): 81 [] -subset(A,empty_set)|A=empty_set.
% 1.95/2.16  ** KEPT (pick-wt=10): 83 [copy,82,flip.2] -subset(A,B)|set_union2(A,set_difference(B,A))=B.
% 1.95/2.16  ** KEPT (pick-wt=8): 84 [] -in(A,set_intersection2(B,C))| -disjoint(B,C).
% 1.95/2.16  ** KEPT (pick-wt=6): 85 [] -subset(A,B)| -proper_subset(B,A).
% 1.95/2.16  ** KEPT (pick-wt=9): 86 [] -subset(A,B)| -disjoint(B,C)|disjoint(A,C).
% 1.95/2.16  ** KEPT (pick-wt=5): 87 [] -empty(A)|A=empty_set.
% 1.95/2.16  ** KEPT (pick-wt=8): 88 [] -subset(singleton(A),singleton(B))|A=B.
% 1.95/2.16  ** KEPT (pick-wt=5): 89 [] -in(A,B)| -empty(B).
% 1.95/2.16  ** KEPT (pick-wt=8): 90 [] -disjoint(A,B)|set_difference(A,B)=A.
% 1.95/2.16  ** KEPT (pick-wt=8): 91 [] disjoint(A,B)|set_difference(A,B)!=A.
% 1.95/2.16  ** KEPT (pick-wt=7): 92 [] -empty(A)|A=B| -empty(B).
% 1.95/2.16  ** KEPT (pick-wt=11): 93 [] -subset(A,B)| -subset(C,B)|subset(set_union2(A,C),B).
% 1.95/2.16  ** KEPT (pick-wt=9): 94 [] singleton(A)!=unordered_pair(B,C)|A=B.
% 1.95/2.16  ** KEPT (pick-wt=9): 95 [] singleton(A)!=unordered_pair(B,C)|B=C.
% 1.95/2.16  
% 1.95/2.16  ------------> process sos:
% 1.95/2.16  ** KEPT (pick-wt=3): 123 [] A=A.
% 1.95/2.16  ** KEPT (pick-wt=7): 124 [] unordered_pair(A,B)=unordered_pair(B,A).
% 1.95/2.16  ** KEPT (pick-wt=7): 125 [] set_union2(A,B)=set_union2(B,A).
% 1.95/2.16  ** KEPT (pick-wt=7): 126 [] set_intersection2(A,B)=set_intersection2(B,A).
% 1.95/2.16  ** KEPT (pick-wt=14): 127 [] A=singleton(B)|in($f1(B,A),A)|$f1(B,A)=B.
% 1.95/2.16  ** KEPT (pick-wt=7): 128 [] A=empty_set|in($f2(A),A).
% 1.95/2.16  ** KEPT (pick-wt=14): 129 [] A=powerset(B)|in($f3(B,A),A)|subset($f3(B,A),B).
% 1.95/2.16  ** KEPT (pick-wt=23): 130 [] A=unordered_pair(B,C)|in($f4(B,C,A),A)|$f4(B,C,A)=B|$f4(B,C,A)=C.
% 1.95/2.16  ** KEPT (pick-wt=23): 131 [] A=set_union2(B,C)|in($f5(B,C,A),A)|in($f5(B,C,A),B)|in($f5(B,C,A),C).
% 1.95/2.16  ** KEPT (pick-wt=17): 132 [] A=cartesian_product2(B,C)|in($f10(B,C,A),A)|in($f9(B,C,A),B).
% 1.95/2.16  ** KEPT (pick-wt=17): 133 [] A=cartesian_product2(B,C)|in($f10(B,C,A),A)|in($f8(B,C,A),C).
% 1.95/2.16  ** KEPT (pick-wt=25): 135 [copy,134,flip.3] A=cartesian_product2(B,C)|in($f10(B,C,A),A)|ordered_pair($f9(B,C,A),$f8(B,C,A))=$f10(B,C,A).
% 1.95/2.16  ** KEPT (pick-wt=8): 136 [] subset(A,B)|in($f11(A,B),A).
% 1.95/2.16  ** KEPT (pick-wt=17): 137 [] A=set_intersection2(B,C)|in($f12(B,C,A),A)|in($f12(B,C,A),B).
% 1.95/2.16  ** KEPT (pick-wt=17): 138 [] A=set_intersection2(B,C)|in($f12(B,C,A),A)|in($f12(B,C,A),C).
% 1.95/2.16  ** KEPT (pick-wt=16): 139 [] A=union(B)|in($f15(B,A),A)|in($f15(B,A),$f14(B,A)).
% 1.95/2.16  ** KEPT (pick-wt=14): 140 [] A=union(B)|in($f15(B,A),A)|in($f14(B,A),B).
% 1.95/2.16  ** KEPT (pick-wt=17): 141 [] A=set_difference(B,C)|in($f16(B,C,A),A)|in($f16(B,C,A),B).
% 1.95/2.16  ** KEPT (pick-wt=10): 143 [copy,142,flip.1] unordered_pair(unordered_pair(A,B),singleton(A))=ordered_pair(A,B).
% 1.95/2.16  ---> New Demodulator: 144 [new_demod,143] unordered_pair(unordered_pair(A,B),singleton(A))=ordered_pair(A,B).
% 1.95/2.16  ** KEPT (pick-wt=2): 145 [] empty(empty_set).
% 1.95/2.16  ** KEPT (pick-wt=5): 146 [] set_union2(A,A)=A.
% 1.95/2.16  ---> New Demodulator: 147 [new_demod,146] set_union2(A,A)=A.
% 1.95/2.16  ** KEPT (pick-wt=5): 148 [] set_intersection2(A,A)=A.
% 1.95/2.16  ---> New Demodulator: 149 [new_demod,148] set_intersection2(A,A)=A.
% 1.95/2.16  ** KEPT (pick-wt=7): 150 [] in(A,B)|disjoint(singleton(A),B).
% 1.95/2.16  ** KEPT (pick-wt=2): 151 [] empty($c1).
% 1.95/2.16  ** KEPT (pick-wt=3): 152 [] subset(A,A).
% 1.95/2.16  ** KEPT (pick-wt=5): 153 [] subset(set_intersection2(A,B),A).
% 1.95/2.16  ** KEPT (pick-wt=5): 154 [] set_union2(A,empty_set)=A.
% 1.95/2.16  ---> New Demodulator: 155 [new_demod,154] set_union2(A,empty_set)=A.
% 1.95/2.16  ** KEPT (pick-wt=5): 157 [copy,156,flip.1] singleton(empty_set)=powerset(empty_set).
% 1.95/2.16  ---> New Demodulator: 158 [new_demod,157] singleton(empty_set)=powerset(empty_set).
% 1.95/2.16  ** KEPT (pick-wt=5): 159 [] set_intersection2(A,empty_set)=empty_set.
% 1.95/2.16  ---> New Demodulator: 160 [new_demod,159] set_intersection2(A,empty_set)=empty_set.
% 1.95/2.16  ** KEPT (pick-wt=13): 161 [] in($f17(A,B),A)|in($f17(A,B),B)|A=B.
% 1.95/2.16  ** KEPT (pick-wt=3): 162 [] subset(empty_set,A).
% 1.95/2.16  ** KEPT (pick-wt=5): 163 [] subset(set_difference(A,B),A).
% 1.95/2.16  ** KEPT (pick-wt=8): 164 [] subset(unordered_pair($c5,$c4),$c3)|in($c5,$c3).
% 1.95/2.16  ** KEPT (pick-wt=8): 165 [] subset(unordered_pair($c5,$c4),$c3)|in($c4,$c3).
% 1.95/2.16  ** KEPT (pick-wt=9): 166 [] set_union2(A,set_difference(B,A))=set_union2(A,B).
% 1.95/2.16  ---> New Demodulator: 167 [new_demod,166] set_union2(A,set_difference(B,A))=set_union2(A,B).
% 1.95/2.16  ** KEPT (pick-wt=5): 168 [] set_difference(A,empty_set)=A.
% 1.95/2.16  ---> New Demodulator: 169 [new_demod,168] set_difference(A,empty_set)=A.
% 1.95/2.16  ** KEPT (pick-wt=8): 170 [] disjoint(A,B)|in($f18(A,B),A).
% 1.95/2.16  ** KEPT (pick-wt=8): 171 [] disjoint(A,B)|in($f18(A,B),B).
% 1.95/2.16  ** KEPT (pick-wt=9): 172 [] set_difference(set_union2(A,B),B)=set_difference(A,B).
% 1.95/2.16  ---> New Demodulator: 173 [new_demod,172] set_difference(set_union2(A,B),B)=set_difference(A,B).
% 1.95/2.16  ** KEPT (pick-wt=9): 175 [copy,174,flip.1] set_intersection2(A,B)=set_difference(A,set_difference(A,B)).
% 1.95/2.16  ---> New Demodulator: 176 [new_demod,175] set_intersection2(A,B)=set_difference(A,set_difference(A,B)).
% 1.95/2.16  ** KEPT (pick-wt=5): 177 [] set_difference(empty_set,A)=empty_set.
% 1.95/2.16  ---> New Demodulator: 178 [new_demod,177] set_difference(empty_set,A)=empty_set.
% 1.95/2.16  ** KEPT (pick-wt=12): 180 [copy,179,demod,176] disjoint(A,B)|in($f19(A,B),set_difference(A,set_difference(A,B))).
% 1.95/2.16  ** KEPT (pick-wt=6): 182 [copy,181,flip.1] singleton(A)=unordered_pair(A,A).
% 1.95/2.16  ---> New Demodulator: 183 [new_demod,182] singleton(A)=unordered_pair(A,A).
% 1.95/2.16  ** KEPT (pick-wt=5): 184 [] subset(A,set_union2(A,B)).
% 1.95/2.16    Following clause subsumed by 123 during input processing: 0 [copy,123,flip.1] A=A.
% 1.95/2.16  123 back subsumes 119.
% 1.95/2.16  123 back subsumes 117.
% 1.95/2.16  123 back subsumes 97.
% 1.95/2.16    Following clause subsumed by 124 during input processing: 0 [copy,124,flip.1] unordered_pair(A,B)=unordered_pair(B,A).
% 1.95/2.16    Following clause subsumed by 125 during input processing: 0 [copy,125,flip.1] set_union2(A,B)=set_union2(B,A).
% 1.95/2.16  ** KEPT (pick-wt=11): 185 [copy,126,flip.1,demod,176,176] set_difference(A,set_difference(A,B))=set_difference(B,set_difference(B,A)).
% 1.95/2.16  >>>> Starting back demodulation with 144.
% 1.95/2.16  >>>> Starting back demodulation with 147.
% 64.13/64.31      >> back demodulating 120 with 147.
% 64.13/64.31      >> back demodulating 99 with 147.
% 64.13/64.31  >>>> Starting back demodulation with 149.
% 64.13/64.31      >> back demodulating 122 with 149.
% 64.13/64.31      >> back demodulating 116 with 149.
% 64.13/64.31      >> back demodulating 109 with 149.
% 64.13/64.31      >> back demodulating 106 with 149.
% 64.13/64.31  >>>> Starting back demodulation with 155.
% 64.13/64.31  >>>> Starting back demodulation with 158.
% 64.13/64.31  >>>> Starting back demodulation with 160.
% 64.13/64.31  >>>> Starting back demodulation with 167.
% 64.13/64.31      >> back demodulating 83 with 167.
% 64.13/64.31  >>>> Starting back demodulation with 169.
% 64.13/64.31  >>>> Starting back demodulation with 173.
% 64.13/64.31  >>>> Starting back demodulation with 176.
% 64.13/64.31      >> back demodulating 159 with 176.
% 64.13/64.31      >> back demodulating 153 with 176.
% 64.13/64.31      >> back demodulating 148 with 176.
% 64.13/64.31      >> back demodulating 138 with 176.
% 64.13/64.31      >> back demodulating 137 with 176.
% 64.13/64.31      >> back demodulating 126 with 176.
% 64.13/64.31      >> back demodulating 108 with 176.
% 64.13/64.31      >> back demodulating 107 with 176.
% 64.13/64.31      >> back demodulating 84 with 176.
% 64.13/64.31      >> back demodulating 74 with 176.
% 64.13/64.31      >> back demodulating 73 with 176.
% 64.13/64.31      >> back demodulating 71 with 176.
% 64.13/64.31      >> back demodulating 45 with 176.
% 64.13/64.31      >> back demodulating 44 with 176.
% 64.13/64.31      >> back demodulating 34 with 176.
% 64.13/64.31      >> back demodulating 33 with 176.
% 64.13/64.31      >> back demodulating 32 with 176.
% 64.13/64.31      >> back demodulating 31 with 176.
% 64.13/64.31  >>>> Starting back demodulation with 178.
% 64.13/64.31  >>>> Starting back demodulation with 183.
% 64.13/64.31      >> back demodulating 157 with 183.
% 64.13/64.31      >> back demodulating 150 with 183.
% 64.13/64.31      >> back demodulating 143 with 183.
% 64.13/64.31      >> back demodulating 127 with 183.
% 64.13/64.31      >> back demodulating 95 with 183.
% 64.13/64.31      >> back demodulating 94 with 183.
% 64.13/64.31      >> back demodulating 88 with 183.
% 64.13/64.31      >> back demodulating 62 with 183.
% 64.13/64.31      >> back demodulating 61 with 183.
% 64.13/64.31      >> back demodulating 60 with 183.
% 64.13/64.31      >> back demodulating 57 with 183.
% 64.13/64.31      >> back demodulating 56 with 183.
% 64.13/64.31      >> back demodulating 55 with 183.
% 64.13/64.31      >> back demodulating 54 with 183.
% 64.13/64.31      >> back demodulating 53 with 183.
% 64.13/64.31      >> back demodulating 8 with 183.
% 64.13/64.31      >> back demodulating 7 with 183.
% 64.13/64.31      >> back demodulating 6 with 183.
% 64.13/64.31    Following clause subsumed by 185 during input processing: 0 [copy,185,flip.1] set_difference(A,set_difference(A,B))=set_difference(B,set_difference(B,A)).
% 64.13/64.31  >>>> Starting back demodulation with 197.
% 64.13/64.31  >>>> Starting back demodulation with 212.
% 64.13/64.31  >>>> Starting back demodulation with 215.
% 64.13/64.31  
% 64.13/64.31  ======= end of input processing =======
% 64.13/64.31  
% 64.13/64.31  =========== start of search ===========
% 64.13/64.31  
% 64.13/64.31  
% 64.13/64.31  Resetting weight limit to 7.
% 64.13/64.31  
% 64.13/64.31  
% 64.13/64.31  Resetting weight limit to 7.
% 64.13/64.31  
% 64.13/64.31  sos_size=650
% 64.13/64.31  
% 64.13/64.31  
% 64.13/64.31  Resetting weight limit to 6.
% 64.13/64.31  
% 64.13/64.31  
% 64.13/64.31  Resetting weight limit to 6.
% 64.13/64.31  
% 64.13/64.31  sos_size=663
% 64.13/64.31  
% 64.13/64.31  Search stopped because sos empty.
% 64.13/64.31  
% 64.13/64.31  
% 64.13/64.31  Search stopped because sos empty.
% 64.13/64.31  
% 64.13/64.31  ============ end of search ============
% 64.13/64.31  
% 64.13/64.31  -------------- statistics -------------
% 64.13/64.31  clauses given                863
% 64.13/64.31  clauses generated        2778341
% 64.13/64.31  clauses kept                1146
% 64.13/64.31  clauses forward subsumed    9709
% 64.13/64.31  clauses back subsumed        124
% 64.13/64.31  Kbytes malloced             8789
% 64.13/64.31  
% 64.13/64.31  ----------- times (seconds) -----------
% 64.13/64.31  user CPU time         62.14          (0 hr, 1 min, 2 sec)
% 64.13/64.31  system CPU time        0.01          (0 hr, 0 min, 0 sec)
% 64.13/64.31  wall-clock time       64             (0 hr, 1 min, 4 sec)
% 64.13/64.31  
% 64.13/64.31  Process 8677 finished Wed Jul 27 07:24:07 2022
% 64.13/64.31  Otter interrupted
% 64.13/64.31  PROOF NOT FOUND
%------------------------------------------------------------------------------